/*
 * This is Melet, a salary slip designer. Feed it with data regarding to salary payment, prepare it for print through the graphical presentation, and you have it done.
 * Copyright (C) 2014, AFDiaX
 * 
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 * 
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 * 
 * You should have received a copy of the GNU General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 *
 * This program is based on UMLet, a Free UML Tool for Fast UML Diagrams.
 * To contact the authors of UMLet visit https://code.google.com/p/umlet/people/list
 * To contact the authors of Melet visit https://gna.org/users/gabocze
 */
package com.baselet.gui.command;

import java.util.Vector;

import com.baselet.diagram.DiagramHandler;
import com.baselet.element.ElementFactorySwing;
import com.baselet.element.interfaces.GridElement;

public class Copy extends Command {

	private Vector<GridElement> entities;

	public Copy() {

	}

	@Override
	public void execute(DiagramHandler handler) {

		// dont execute super.execute() because no change of diagram is required.
		if (entities == null) {
			entities = new Vector<GridElement>();
			for (GridElement e : handler.getDrawPanel().getSelector().getSelectedElements()) {
				entities.add(ElementFactorySwing.createCopy(e));
			}
		}

		// if (entities.isEmpty()) return; UNCOMMENTED TO ALLOW COPY FULL DIAGRAM TO CLIPBOARD WITHOUT SELECTING ANYTHING
		ClipBoard.getInstance().copy(entities, handler);
	}

	@Override
	public boolean isChangingDiagram() {
		return false;
	}

}
